Maintenance
The 6KW, 12KW and 24KW portable dimmers are designed to be low maintenance; however, several precautionary steps will
prolong the life of the electronic components. Whenever possible, limit the unit’s exposure to high ambient temperatures. Take
care not to drop the device and always protect the controls and connectors from damage. Do not allow liquid of any kind to enter
the unit.
All screws and connections should be checked, and tightened if necessary, on a regular basis, especially in rental and location
applications. If the unit accumulates dust, disconnect it from power and clean it using compressed air. Always disconnect dimmer
from power before performing any maintenance operation.
Troubleshooting
If the portable dimmer does not operate as expected, check the power source and check all cables and connectors. Be sure the
Mains Power circuit breaker is on. Confirm that the controlled load operates from a constant power
supply and confirm that any remote console is sending valid DMX512-A data.
Control indicators do not illuminate:
Confirm that power is present to the unit.
Inc and Dec buttons do not raise and lower the lighting level:
Make sure the dimmer is in Manual mode
(press and hold Function button until Manual LED illuminates).
Unit does not respond to remote DMX512 input:
Check all control cabling and check that DMX Data LED is
illuminated to indicate presence of control signal. Make sure that dimmer is in DMX or Relay mode (press and hold Function
button until one of these LEDs illuminates).
Connected load switches on and off instead of dimming:
Confirm that Relay mode is activated. Press and hold Function
button until Relay LED illuminates. If a DMX512 address is displayed, Relay function is active. To deactivate Relay function, press
Dec pushbutton. Display should go blank to indicate a return to dimming operation.
The dimmer does not respond to the user controls – Inc, Function, Dec:
Reset the electronics by pressing the Reset
button on the rear of the unit.
Connected load is ghosting and will not shut off:
A pre-heat level has been set and is retained in memory.
Cycle the Function button until the pre-heat LED illuminates and use the Dec button to reset the pre-heat level to zero. Use the
Function button to return to Manual or DMX mode.
Load is stuck on and does not dim or switch off:
Check to see if Relay mode is activated and the relay has been turned
on manually. Press and hold Function button until Relay LED illuminates. If the display shows “ON” the relay has been turned on
manually. Press the Dec button to turn the relay OFF. If the load remains on, the power device may have failed. Contact Technical
Services at 1.855.LEX.1002
Technical Support
The staff at Lex Products is willing and available to help in any way possible. If you have questions or need
technical advice or suggestions regarding this product, please contact Lex at 1.855.LEX.1002 or e-mail Lex at
Business hours are Monday through Friday, 8:30 am – 5 pm. In addition, Technical Services
is available 24/7 via phone.
LEX User Guide
6
6KW
, 12KW and 24KW Por
table Dimmers
